package com.best.controller;


import com.best.pojo.Result;
import com.best.pojo.User;
import com.best.service.UserService;
import com.best.utils.JwtUtil;
import com.best.utils.Md5Util;
import com.best.utils.ThreadLocalUtil;
import jakarta.validation.constraints.Pattern;
import lombok.extern.slf4j.Slf4j;
import org.hibernate.validator.constraints.URL;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.data.redis.core.ValueOperations;
import org.springframework.util.StringUtils;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.*;

import javax.lang.model.util.SimpleTypeVisitor14;
import java.rmi.MarshalledObject;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.TimeUnit;

@RestController
@Slf4j
@RequestMapping("/user")
@Validated
public class UserController {



    @Autowired
    private UserService userService;


    @Autowired
    private StringRedisTemplate stringRedisTemplate;





    /**
     *
     * 注册接口
     *
     * */
    @PostMapping("/register")
    public Result<String> register(@Pattern(regexp = "^\\S{5,16}$") String username,@Pattern(regexp = "^\\S{5,16}$") String password){
        //查询用户

        User user = userService.findByUserName(username);
        if(user ==  null){
            //没有占用
            //注册
            userService.register(username,password);
            return Result.success();

        }else{

            //占用
            return  Result.error("用户名已存在");
        }


    }



    /**
     *
     * 登录接口
     *
     * */
    @PostMapping("/login")
    public Result<String> login(@Pattern(regexp = "^\\S{5,16}$") String username,@Pattern(regexp = "^\\S{5,16}$") String password){

        User user = userService.findByUserName(username);
        if(user==null){
            return Result.error("用户名错误");
        }

        if(Md5Util.getMD5String(password).equals(user.getPassword())){
            Map<String,Object> claims = new HashMap<>();
            claims.put("id",user.getId());
            claims.put("username",user.getUsername());
            String token = JwtUtil.genToken(claims);
            //把token存储到redis中
            ValueOperations<String, String> operations = stringRedisTemplate.opsForValue();
            operations.set(token,token,1, TimeUnit.HOURS);
            return Result.success(token);
        }
        return Result.error("密码错误");

    }


    @GetMapping("/userInfo")
    public Result<User> userInfo(/*@RequestHeader(name="Authorization") String token*/){
        //Map<String, Object> map = JwtUtil.parseToken(token);
        //String username = (String) map.get("username");

        Map<String,Object> map = ThreadLocalUtil.get();
        String username = (String) map.get("username");
        User user = userService.findByUserName(username);

        return Result.success(user);

    }



    /**
     *
     * 更新用户基本信息
     *
     *
     * */

    @PutMapping("/update")
    public Result<User> update(@RequestBody @Validated User user){
        userService.update(user);

        return Result.success();
    }




    /**
     * 更新头像
     *
     * */
    @PatchMapping("/updateAvatar")
    public Result<String> updateAvatar(@RequestParam @URL String avatarUrl){
        userService.updateAvatar(avatarUrl);
        return Result.success("更新头像成功");

    }


    @PatchMapping("/upatePwd")
    public Result<String> updatePwd(@RequestBody Map<String,String> params,@RequestHeader("Authorization") String token){
        String oldPwd = params.get("old_pwd");
        String newPwd = params.get("new_pwd");
        String rePwd = params.get("re_pwd");

        if(!StringUtils.hasLength(oldPwd) || !StringUtils.hasLength(newPwd)|| !StringUtils.hasLength(rePwd)){
            return Result.error("缺少必要参数");
        }

        Map<String,Object> map =  ThreadLocalUtil.get();
        String username = (String) map.get("username");
        User user = userService.findByUserName(username);

        if(!user.getPassword().equals(Md5Util.getMD5String(oldPwd))){
            return Result.error("原密码填写不正确");
        }

        if(!rePwd.equals(newPwd)){
            return Result.error("两次填写的密码不一致");
        }


        userService.updatePwd(newPwd);
        //删除对应的 token
        ValueOperations<String, String> operations = stringRedisTemplate.opsForValue();
        operations.getOperations().delete(token);
        return Result.success();



    }














}
